| 摘要 |
PURPOSE: To provide an airtight waterproof slide fastener which has securely airtight waterproof performance and is not easily torn up even when strongly bent in the lateral direction. CONSTITUTION: One side edge of an air tight waterproof tape (11) is folded so as to wrap a plurality of engaging elements (13) with engaging head part (13b) from the base side to form a teeth retaining part (11a) with an almost ¥Øshape section. Stress escape parts (14c-14e, R) to escape stress generated at a tape part (11b) existing in between side faces of neighboring cramp pieces (15a, 15b) centering on a folding part when the air tight waterproof tape (11) is folded in between neighboring cramp elements (14) are equipped on a cramp element (14) of the air tight waterproof slide fastener (10) with a pair of fastener stringers (18) cramped and fixed by an almost U shape cramp element (14) comprising a pair of plate cramp pieces (15a, 15b) and a connecting part (16) to connect each one ends of cramp pieces (15a, 15b). |
